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I'm running Windows 7 Enterprise on an HP Envy 15 laptop with and i7 processor. I have an external monitor connected via HDMI and I also have an external keyboard attached to my laptop via usb.

At random times DisplaySwitch.exe pops up. Today it even went into a repeating loop of bringing it up at about 20 times per second.

This has happened when I have my monitor and keyboard connected but also when I have the laptop away from my desk with nothing connected.

Sometimes after this happens, when I move my cursor to a text box, I get repeating 8's in the text box.

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Sounds like a key may be stuck. Has there been any damage to the keyboard? What, if anything, can you do to get it to stop? – CharlieRB Nov 11 '11 at 19:22
I've tried blowing out both my external and laptop keyboard. To get it to stop, I usually end up selecting the mode I'm currently in but it pops back up. For the repeating 8's, I have to reboot. – user105051 Nov 11 '11 at 20:18
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